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Groundwater Flow Characterization in the Vicinity of the Underground Caverns by Groundwater Level Changes  

강재기 (전남대학교 건설지구환경공학부)
양형식 (전남대학교 건설지구환경공학부)
김경수 (한국원자력연구소)
김천수 (한국원자력연구소)
Publication Information
Tunnel and Underground Space / v.13, no.6, 2003 , pp. 465-475 More about this Journal
Abstract
Groundwater inflow into the caverns constructed in fractured rock mass was simulated by numerical modeling, NAPSAC (DFN, discrete fracture network model) and NAMMU (CPM, continuous porous media model), a finite-element software package for groundwater flow in 3D fractured media developed by AEA Technology, UK. The input parameters for modeling were determined on surface fracture survey, core logging and single hole hydraulic test data. In order to predict the groundwater inflow more accurately, the anisotropic hydraulic conductivity was considered. The anisotropic hydraulic conductivities were calculated from the fracture network properties. With a minor adjustment during model calibration, the numerical modeling is able to reproduce reasonably groundwater inflows into cavern and the travel length and times to the ground surface along the flow paths in the normal, dry and rainy seasons.
Keywords
Three-dimesional fracture network model; Anisotropic hydraulic conductivities; DFN model; CPM model; Groundwater inflows; Pathway; Travel time;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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